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12,357 questions
Tagged
184
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no
answers
no
votes
2019-11-18 13:08:33 -0600
Hugheschen
Using CALIB_FIX_PRINCIPLE_POINT flag, but calibration result still see changes in Principle Point
calibration
993
views
no
answers
no
votes
2019-11-19 03:51:14 -0600
Vonzooooo
Build OpenCV with QMAKE
cmake
cmake-gui
opencv
qt
712
views
no
answers
no
votes
2019-11-19 11:13:41 -0600
zakaziko
Extract object and save it as an image.png using c++
c++
opencv
280
views
no
answers
no
votes
2019-11-19 12:00:20 -0600
Chun
Is it necessary to use StereoRectify and StereoCalibrate if I want to find the 3d coordinate of image point with two camera
triangulation
259
views
no
answers
no
votes
2019-11-19 20:53:17 -0600
Downey
understand the kalman filter for video stabilization
KalmanFilter
videostabilization
422
views
no
answers
no
votes
2019-11-20 04:10:06 -0600
Dimitar Veljanovski
Can i run OpenCV on the GPU pipeline if i plan to deploy it on Android and IOS devices?
android
AndroidOpenCV
opencv
CUDA
413
views
no
answers
no
votes
2019-11-20 08:18:31 -0600
Porucik Dan
How to get all reprojection errors from stereoCalibrate
stereo-calibration
186
views
no
answers
no
votes
2019-11-20 20:11:12 -0600
bllu
cv::Mat mat; works fine but cv::dnn::Net net; throws errors
linker
dnn
137
views
no
answers
no
votes
2019-11-20 20:45:12 -0600
Ziqi
Runtime Error: cv::medianBlur() crush every time in opencv 4.1.2
crush
1k
views
no
answers
no
votes
2019-12-01 10:08:40 -0600
J.Han
Using OpenCV dnn module as dll, Net::forward() error
Yolov3
c++
dnn
209
views
no
answers
no
votes
2019-11-21 06:11:57 -0600
BEEKEEPER42
Finding length of specific lines in bee wing
linesmatching
linedetection
93
views
no
answers
no
votes
2019-11-21 10:25:45 -0600
JoseAFern
cv::ml::rtrees importance calculation
ml
RTrees
importance
129
views
no
answers
no
votes
2019-11-21 10:35:43 -0600
rem
why My HDR picture is green ?
android
opencv
HDR
331
views
no
answers
no
votes
2019-11-21 10:54:17 -0600
VxW
setUseOptimized()
performance
setUseOptimized
368
views
no
answers
no
votes
2019-11-23 02:11:07 -0600
hardik patel
android face recognition
facerecognize
android
opencv
Facedetection
edges
2k
views
no
answers
no
votes
2019-11-23 02:35:56 -0600
Martian
CUDA CuBlas libs not found
CUDA
cublas
cmake-gui
2k
views
no
answers
no
votes
2019-11-23 13:02:04 -0600
monilogi
How to capture 60 FPS at normal speed on Logitech c922x
fps
mac
logitech
python
493
views
no
answers
no
votes
2019-11-25 06:28:55 -0600
JoseAFern
cv::ml::rtrees oob error bug???
oob
error
ml
bug
246
views
no
answers
no
votes
2019-11-25 15:09:11 -0600
bananapen
Generate Opticalflow on images using OpenCV
BroxOpticalFlow
c++
CUDA
8k
views
no
answers
no
votes
2019-11-25 15:53:14 -0600
gst
How to convert numpy array to cv::Mat
opencv#python#numpy
199
views
no
answers
no
votes
2019-11-26 01:37:44 -0600
berak
opencv pose keypoints explanation Needed
pose-estimation
675
views
no
answers
no
votes
2019-11-26 13:59:12 -0600
Rishan123
cv2.error: OpenCV(4.1.0) /home/pi/opencv/opencv-4.1.0/modules/features2d/src/bagofwords.cpp:55: error: (-215:Assertion failed) !_descriptors.empty() in function 'add'
objectdetection
edges
434
views
no
answers
no
votes
2019-11-26 21:40:45 -0600
off99555
How can I solvePnP with fisheye camera parameters?
pose-estimation
calibrateCamera
project
2k
views
no
answers
no
votes
2019-11-27 03:54:30 -0600
Dianan137
How to choose sigma/kernel size when downsampling image
downscaling
gaussianblur
resize
1k
views
no
answers
no
votes
2019-11-27 10:44:59 -0600
Kitnos
Camera pose estimation with QR code by Opencv
qrcode
camera-pose
ZBar
c++
729
views
no
answers
no
votes
2019-11-27 12:58:22 -0600
Karido
Combining KAZE keypoints with SIFT descriptors?
SIFT
KAZE
descriptors
keypoint-matching
keypoint
feature-detection
137
views
no
answers
no
votes
2019-11-27 12:52:54 -0600
michlvl
histogram: how to find bins values for certain range of data(at Y-axis)?
histogram
1k
views
no
answers
no
votes
2019-11-29 06:53:18 -0600
bkarpati
Setting codec parameters with FFMPEG backend
Video
CaptureVideo
ffmpeg
ffv1
115
views
no
answers
no
votes
2019-11-29 08:51:23 -0600
berak
visual studio2017 can't find "gfluidimgproc_func.simd.hpp''
visual
visual-studio2017
opencv
480
views
no
answers
no
votes
2019-11-30 11:19:34 -0600
Kitnos
Knn for keypoints and descriptors of SIFT
KNN
SIFT
c++
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